7. A 12-kg box is attached to a flat belt that passes over a fixed cylinder as shown below. Force F= 135 N at the instant just before the box starts to move upward. The coefficient of static friction between the belt and the cylinder is best given by T₂ =T₁e²p a: 0.0872 0.0436 % C. 0.215 A. 0.108 135 M/ F- L m 12 kg

7. A 12-kg box is attached to a flat belt that passes over a fixed cylinder as shown below. Force F= 135 N at the instant just before the box starts to move upward. The coefficient of static friction between the belt and the cylinder is best given by T₂ =T₁e²p a: 0.0872 0.0436 % C. 0.215 A. 0.108 135 M/ F- L m 12 kg

International Edition---engineering Mechanics: Statics, 4th Edition

4th Edition

ISBN:9781305501607

Author:Andrew Pytel And Jaan Kiusalaas

Publisher:Andrew Pytel And Jaan Kiusalaas

Chapter7: Dry Friction

Section: Chapter Questions

Problem 7.3P: Two identical chairs, each weighing 14 lb, are stacked as shown. The center of gravity of each chair...

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